Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
5104349Factored
FactorDigitsBitsDate
5051484516107670279393690792788.72020-05-14 01:31:59
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-06-01Steve HyattBF95B7B7C701D0960
Verified (Factored)2000-07-25Mark JamesBF95B7B7C701D096835583
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-05-15Luigi MorelliDFA52213F984A99C1113055153
Verified2020-05-16MarkSDFA52213F984A99C177973353
P-1 factors
DateFactorB1B2
2020-05-14505148451610767027939369079100000022500000
History
DateUserTypeResult
2020-05-16MarkSC-PRP
M5104349/505148451610767027939369079 : DFA52213F984A99C
PRP: Verified
PRP without proof (not generated)
2020-05-15Luigi MorelliC-PRP
M5104349/505148451610767027939369079 : DFA52213F984A99C
PRP: Verified
PRP without proof (not generated)
2020-05-14KingF-PM1
Factor: 505148451610767027939369079 / (P-1, B1=1000000, B2=22500000, E=12)
2018-06-20ramgeisNF
no factor from 2^67 to 2^68
2016-05-15Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-08-04snme2pm1NF
no factor from 2^65 to 2^66
2014-12-14VictordeHollanderNF
no factor from 2^64 to 2^65
2014-12-14VictordeHollanderNF
no factor from 2^63 to 2^64
2013-05-11Squeeky_SquirrelNF-PM1
B1=90000, B2=1642500, E=6
2009-09-21USAFSSNF-PM1
B1=55000, B2=921250, E=6
2009-08-26Carsten KossendeyNF-PM1
B1=25000, B2=325000
2009-07-27GrunwalderGIMPNF
no factor from 2^1 to 2^63
2008-12-29Sturle SundeNF
no factor from 2^61 to 2^62